Acer 23" LCD Widescreen Monitor: * 23" diagonal LCD screen * 16:9 aspect ratio Widescreen is perfect for viewing 2 documents side by side or for watching movies * 1920 x 1080 Full HD resolution Enjoy excellent image quality * Colors Capable of displaying millions of colors for realistic photo and video reproduction * 100,000,000:1 contrast ratio Acer 23" monitor offers great color resolution ENERGY STAR® Products that are ENERGY STAR-qualified prevent greenhouse gas emissions by meeting strict energy efficiency guidelines set by the U.S. Environmental Protection Agency and the U.S. Department of Energy. The ENERGY STAR name and marks are registered marks owned by the U.S. government, as part of their energy efficiency and environmental activities.